This book examines the research and theoretical bases for the creation of a risk-needs management instrument for violent adolescents and young adults. The proposed instrument includes risk indicators beginning pre-natally, pari-natally, at-birth, then through infancy, early childhood, middle childhood and, finally, adolescence. The main purpose of the instrument is to assist case managers responsible for providing positive interventions to families and children, at all childhood and adolescent life stages, in order to reduce the likelihood of violent behaviors. The case intervention strategy i.